Journal ArticleDOI
Quantum cryptography based on Bell's theorem.
TLDR
Practical application of the generalized Bells theorem in the so-called key distribution process in cryptography is reported, based on the Bohms version of the Einstein-Podolsky-Rosen gedanken experiment andBells theorem is used to test for eavesdropping.Abstract:
Practical application of the generalized Bells theorem in the so-called key distribution process in cryptography is reported. The proposed scheme is based on the Bohms version of the Einstein-Podolsky-Rosen gedanken experiment and Bells theorem is used to test for eavesdropping. © 1991 The American Physical Society.read more
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Journal ArticleDOI
Phase-controlled integrated photonic quantum circuits
TL;DR: A key proof-of-principle demonstration of an externallycontrolled photonic quantum circuit based upon UV-written waveguide technology and non-classical interference of photon pairs in a Mach-Zehnder interferometer constructed with X couplers in an integrated optical circuit.
Book ChapterDOI
Quantum Computation and Information
TL;DR: The problem of minimizing the number of qubits in quantum automata is presented in detail at a level appropriate for non-specialists in order to illustrate some key issues in quantum computation.
Journal ArticleDOI
Experimental entanglement distillation of mesoscopic quantum states
Ruifang Dong,Mikael Lassen,Mikael Lassen,Joel Heersink,Christoph Marquardt,Radim Filip,Gerd Leuchs,Ulrik L. Andersen +7 more
TL;DR: In this paper, the first time such "entanglement distillation" has been achieved for states of light that are entangled in continuous variables, which should help to increase the distance over which quantum information can be distributed.
Journal ArticleDOI
Device-independent entanglement quantification and related applications.
Tobias Moroder,Jean-Daniel Bancal,Jean-Daniel Bancal,Yeong-Cherng Liang,Martin Hofmann,Otfried Gühne +5 more
TL;DR: It is shown that the method presented provides a rigorous way to construct dimension witnesses, gives new insights into the question whether bound entangled states can violate a Bell inequality, and can be used to construct device-independent entanglement witnesses involving an arbitrary number of parties.
Journal ArticleDOI
Quantum random networks
TL;DR: In this article, when quantum effects are added, qualitatively different behaviours emerge, even for the simplest cases, even when the network is considered in the context of classical statistical mechanics.